wait-for-cluster.sh throw error jq: command not found

[ponkyky]

I've been testing this module for a PoC, but it seems that a script in deployment process assume the presence of a binary which is not present anymore in COS.

The complete error :

module.gke.module.cluster.null_resource.wait_for_regional_cluster: Error running command '/home/ponky/perso/test-gke-module/.terraform/modules/25f7ceaf47579277166eb8da7c1678a8/terraform-google-modules-terraform-google-kubernetes-engine-79542bc/scripts/wait-for-cluster.sh test-module-240713 gke-test-0f2bc90b': exit status 127.
Output: Waiting for cluster gke-test-0f2bc90b in project test-module-240713 to reconcile...
/home/ponky/perso/test-gke-module/.terraform/modules/25f7ceaf47579277166eb8da7c1678a8/terraform-google-modules-terraform-google-kubernetes-engine-79542bc/scripts/wait-for-cluster.sh: line 25: jq: command not found

Terraform version

Terraform v0.11.13
+ provider.google v2.3.0
+ provider.google-beta v2.3.0
+ provider.kubernetes v1.6.2
+ provider.null v2.1.2
+ provider.random v2.1.2

Configuration file

provider.tf

provider "random" {
  version = "~> 2.1"
}

provider "google" {
  version     = "~> 2.3"
  credentials = "<CREDENTIAL_PATH>"
  region      = "europe-west1"
}

provider "google-beta" {
  version     = "~> 2.3"
  credentials = "<CREDENTIAL_PATH>"
  region      = "europe-west1"
}

main.tf

resource "random_id" "gke_id" {
  byte_length = 4
  prefix      = "gke-test-"
}

module "gke" {
  source            = "terraform-google-modules/kubernetes-engine/google"
  version           = "2.0.1"
  project_id        = "<PROJECT_ID>"
  name              = "${random_id.gke_id.hex}"
  region            = "europe-west1"
  network           = "default"
  subnetwork        = "default"
  ip_range_pods     = "p1"
  ip_range_services = "p2"
}

Expected Behavior

Terraform creates plan successfully without error.

Actual Behavior

terraform apply errors with

module.gke.module.cluster.null_resource.wait_for_regional_cluster: Error running command '/home/ponky/perso/test-gke-module/.terraform/modules/25f7ceaf47579277166eb8da7c1678a8/terraform-google-modules-terraform-google-kubernetes-engine-79542bc/scripts/wait-for-cluster.sh test-module-240713 gke-test-0f2bc90b': exit status 127.
Output: Waiting for cluster gke-test-0f2bc90b in project test-module-240713 to reconcile...
/home/ponky/perso/test-gke-module/.terraform/modules/25f7ceaf47579277166eb8da7c1678a8/terraform-google-modules-terraform-google-kubernetes-engine-79542bc/scripts/wait-for-cluster.sh: line 25: jq: command not found

Steps to Reproduce

terraform plan -out=test-plan && terraform apply test-plan

[morgante]

Looks like we don't document the requirement of installing jq: https://stedolan.github.io/jq/